Inventor
DUKES JOHN N
US14 patents
Patents
14 patentsUS5396224AMar 7, 1995
Telemetered patient location system and method
HEWLETT PACKARD CO339 citations96
US5042498AAug 27, 1991
Intelligent electrocardiogram system
HEWLETT PACKARD CO72 citations95
US4716363ADec 29, 1987
Exponential decay time constant measurement using frequency of offset phase-locked loop: system and method
HEWLETT PACKARD CO43 citations92
US4658225AApr 14, 1987
Amplitude insensitive delay lines in a transversal filter
HEWLETT PACKARD CO25 citations92
US5016642AMay 21, 1991
Slow motion cardiac imaging
HEWLETT PACKARD CO45 citations91
US4703251AOct 27, 1987
Testing and calibrating of amplitude insensitive delay lines
HEWLETT PACKARD CO36 citations91
US4573475AMar 4, 1986
Receiving radiation from loops in a common plane for monitoring hospital patients leadlessly
HEWLETT PACKARD CO20 citations82
US4633308ADec 30, 1986
Amplitude insensitive delay lines in an accoustic imaging system
HEWLETT PACKARD CO12 citations73
US4603301AJul 29, 1986
Amplitude insensitive delay lines in a frequency modulated signal detector
HEWLETT PACKARD CO13 citations73
US4227079AOct 7, 1980
Multipath fine positioning beam director
HEWLETT PACKARD CO10 citations73
US5205296AApr 27, 1993
Uterine contraction detection
HEWLETT PACKARD CO12 citations72
US4638191AJan 20, 1987
Amplitude insensitive delay line
HEWLETT PACKARD CO9 citations72
US5168879ADec 8, 1992
Uterine contraction detection
HEWLETT PACKARD CO6 citations61
US4480913ANov 6, 1984
Fine positioning beam director system
HEWLETT PACKARD CO4 citations58